Gemma was hiking for 2 1/2 a hour for 3 hours so u have to multiply 2.5 by 3 and that gonna equal 7.5 so u leave that alone and come back to it later so u get 11 3/8 minus 7.5 and it gonna equal 3 7/8 and I hope that helped you
A fact family is basically just different equations with the same numbers getting the same/different numbers as answers you might say... this will make more sense: 5x8=40 8x5=40 40/8=5 40/5=8
